
//
// MacHttpMessageHandlerProvider.cs
//
// Author:
//       Matt Ward <matt.ward@microsoft.com>
//
// Copyright (c) 2018 Microsoft
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using System.Net.Http;
using MonoDevelop.Core.Web;
using Foundation;

namespace MonoDevelop.MacIntegration
{
	class MacHttpMessageHandlerProvider : HttpMessageHandlerProvider
	{
		readonly DefaultHttpMessageHandlerProvider defaultProvider = new DefaultHttpMessageHandlerProvider ();

		public override HttpMessageHandler CreateHttpMessageHandler (Uri uri, HttpClientSettings settings)
		{
			if (MacPlatformSettings.UseNSUrlSessionHandler) {
				return CreateNSUrlSessionHandler (uri, settings);
			}

			return defaultProvider.CreateHttpMessageHandler (uri, settings);
		}

		HttpMessageHandler CreateNSUrlSessionHandler (Uri uri, HttpClientSettings settings)
		{
			var config = NSUrlSessionConfiguration.DefaultSessionConfiguration;
			config.RequestCachePolicy = NSUrlRequestCachePolicy.ReloadIgnoringLocalCacheData;
			config.URLCache = null;

			var sessionHandler = new NSUrlSessionCredentialsHandler (config) {
				DisableCaching = true,
				AllowAutoRedirect = settings.AllowAutoRedirect,
			};

			if (!settings.SourceAuthenticationRequired) {
				return sessionHandler;
			}

			return new HttpSourceAuthenticationHandler (uri, sessionHandler, sessionHandler);
		}
	}
}
